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Element Description
The Tiling Identification System element defines a named two-dimensional tiling system related to the collection.
Best Practices
A tiling identification system is a defined 2-D grid which covers the surface of the Earth. An example of a tiling identification system is the Worldwide Reference System (WRS) where the surface of the Earth is split into numbered paths and rows. The WRS-2 system is used to catalog Landsat data and is a popular way to search for Landsat data. Another example are the various MODIS grids, such as the MODIS Sinusoidal Tile Grid system which divides the Earth into 595 10 x 10 degree tiles.
There are five sub-elements used to specify a tiling identification system. If provided, all of the sub-fields are required:
Tiling Identification System Name: This field identifies the name of the tiling identification system. The name must be selected from a controlled enumeration list which includes the following values: CALIPSO, MISR, MODIS Tile EASE, MODIS Tile SIN, WELD Alaska Tile, WELD CONUS Tile, WRS-1, WRS-2, Military Grid Reference System
Coordinate 1/ Minimum Value: Identifies the minimum value for one dimension (e.g. horizontal) of the two dimensional tiling system.
Coordinate 1/ Maximum Value: Identifies the maximum value for one dimension (e.g. horizontal) of the two dimensional tiling system.
Coordinate 2/ Minimum Value: Identifies the minimum value for the other dimension (e.g. vertical) of the two dimensional tiling system.
Coordinate 2/ Maximum Value: Identifies the maximum value for the other dimension (e.g. vertical) of the two dimensional tiling system.
Examples:
TilingIdentificationSystemName: MISR
Coordinate1/MinimumValue: 1
Coordinate2/MaximumValue: 233
Coordinate2/MinimumValue: 1
Coordinate2/MaximumValue: 80
TilingIdentificationSystemName: MODIS Tile SIN
Coordinate1/MinimumValue: 0
Coordinate2/MaximumValue: 35
Coordinate2/MinimumValue: 0
Coordinate2/MaximumValue: 17
Element Specification
Providing a Tiling Identification System is optional. An unlimited amount of Tiling Identification Systems may be provided (Cardinality: 0..*)
Model | Element | Type | Usable Valid Values | Constraints | Required? | Cardinality | Notes |
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UMM-C | TilingIdentificationSystem/TilingIdentificationSystemName | Enumeration | CALIPSO MISR MODIS Tile EASE MODIS Tile SIN WELD Alaska Tile WELD CONUS Tile WRS-1 WRS-2 Military Grid Reference System | n/a | Yes, if applicable | 1 | Location of the TilingIdentificationSystemNameEnum in the UMM version 1.16.0 schema: https://git.earthdata.nasa.gov/projects/EMFD/repos/unified-metadata-model/browse/collection/v1.16/umm-c-json-schema.json#676 |
UMM-C | TilingIdentificationSystem/Coordinate1/MinimumValue | Number | n/a | n/a | Yes, if applicable | 1 | |
UMM-C | TilingIdentificationSystem/Coordinate1/MaximumValue | Number | n/a | n/a | Yes, if applicable | 1 | |
UMM-C | TilingIdentificationSystem/Coordinate2/MinimumValue | Number | n/a | n/a | Yes, if applicable | 1 | |
UMM-C | TilingIdentificationSystem/Coordinate2/MaximumValue | Number | n/a | n/a | Yes, if applicable | 1 |
Metadata Validation and QA/QC
All metadata entering the CMR goes through the below process to ensure metadata quality requirements are met. All records undergo CMR validation before entering the system. The process of QA/QC is slightly different for NASA and non-NASA data providers. Non-NASA providers include interagency and international data providers and are referred to as the International Directory Network (IDN).
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Please see the expandable sections below for flowchart details.
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ARC Automated Rules
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Dialect Mappings
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DIF 9 (Note: DIF-9 is being phased out and will no longer be supported after 2018) |
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DIF 10Providing a TwoD_Coordinate_System is optional. An unlimited amount of TwoD_Coordinate_Systems may be provided (Cardinality: 0..*)
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ECHO 10Providing a TwoDCoordinateSystem is optional. An unlimited amount of TwoDCoordinateSystems may be provided (Cardinality: 0..*)
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ISO 19115-2 MENDSProviding a Tiling Identification System is optional. An unlimited amount of Tiling Identification Systems may be provided (Cardinality: 0..*)
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ISO 19115-2 SMAPProviding a Tiling Identification System is optional. An unlimited amount of Tiling Identification Systems may be provided (Cardinality: 0..*)
Example Mapping
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UMM Migration
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Future Mappings
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History
UMM Versioning
Version | Date | What Changed |
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1.15.5 | 12/3/2020 | No changes were made for Tiling Identification System during the transition from version 1.15.4 to 1.15.5 |
1.15.4 | 9/18/2020 | An additional enum, 'Military Grid Reference System' was added to the Tiling Identification System Name |
1.15.3 | 7/1/2020 | No changes were made for Tiling Identification System during the transition from version 1.15.2 to 1.15.3 |
1.15.2 | 5/20/2020 | No changes were made for Tiling Identification System during the transition from version 1.15.1 to 1.15.2 |
1.15.1 | 3/25/2020 | No changes were made for Tiling Identification System during the transition from version 1.15.0 to 1.15.1 |
1.15.0 | 2/26/2020 | No changes were made for Tiling Identification System during the transition from version 1.14.0 to 1.15.0 |
1.14.0 | 10/21/2019 | No changes were made for Tiling Identification System during the transition from version 1.13.0 to 1.14.0 |
1.13.0 | 04/11/2019 | No changes were made for Tiling Identification System during the transition from version 1.12.0 to 1.13.0 |
1.12.0 | 01/22/2019 | No changes were made for Tiling Identification System during the transition from version 1.11.0 to 1.12.0. |
1.11.0 | 11/28/2018 | No changes were made for Tiling Identification System during the transition from version 1.10.0 to 1.11.0. |
1.10.0 | 05/02/2018 | During the transition from version 1.9.0 to 1.10.0, an enumeration list was created for Tiling Identification System. Values in the enumeration include: CALIPSO, MISR, MODIS Tile EASE, MODIS Tile SIN, WELD Alaska Tile, WELD CONUS Tile, WRS-1, WRS-2. |
ARC Documentation
Version | Date | What Changed | Author |
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1.0 | 10/26/2018 | Recommendations/priority matrix transferred from internal ARC documentation to wiki space | Jeanne' le Roux |